On May 25, 2026, financial markets responded sharply to growing optimism that the United States and Iran are nearing an agreement to reopen the Strait of Hormuz and restore regional oil flows, following statements from U.S. President Donald Trump and other officials over the weekend. Trump announced that a peace deal has been 'largely negotiated' and suggested an official announcement is forthcoming, while on Monday he stated on Truth Social that Iran negotiations were 'proceeding nicely.' Pakistani military chief Asim Munir also indicated to China that an agreement is 'close to being reached' [1].
This surge in optimism triggered a pronounced relief trade in crude oil, with WTI crude oil prices plunging approximately 6.57% to around $89.50 per barrel. The sharp decline was attributed to reports of a preliminary U.S.-Iran memorandum of understanding and Trump's positive comments, which together unwound a significant portion of the war-risk premium that had built up in oil prices since the conflict began in February [1].
Equity markets also reacted positively, with S&P 500 futures rising about 1.02% to 7,542.6, reflecting futures activity as U.S. cash markets were closed for Memorial Day. European equities followed suit, with the Stoxx 600 climbing for a sixth consecutive session to its highest close since the outbreak of the Iran war, and the MSCI All Country World Index reportedly reaching an all-time high closing level [1].
Gold prices advanced roughly 1.34% to near $4,570, benefiting from a weaker U.S. dollar and ongoing uncertainty regarding unresolved issues in the Iran negotiations, such as uranium enrichment, sanctions relief terms, and other regional concerns. The U.S. dollar ended the day as the weakest major currency, reflecting the market's risk-on sentiment and the impact of thin liquidity due to widespread holiday closures in the U.S. and Europe [1].
CONCLUSION
Markets responded strongly to optimism over a potential U.S.-Iran deal, with oil prices dropping sharply and equities and gold advancing. Thin holiday trading conditions amplified these moves, but the overall sentiment was positive as investors anticipated a resolution to the regional conflict. Key issues in the negotiations remain unresolved, maintaining some underlying uncertainty.